1. Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
2. Biomaterials Department, Faculty of Oral and Dental Medicine, Modern University for Technology and Information
3. Department of Operative Dentistry, Division of Oral Functional Science and Rehabilitation, School of Dentistry, Asahi University
4. Al-Mikwah Dental Center, Saudi Ministry of Health
5. Institute of Dental Medicine, First Faculty of Medicine of the Charles University and General University Hospital in Prague